This post is part of our Complete Guide to Washington's Capital Gains Tax.
Note: This post discusses Washington's 7% capital gains tax (RCW 82.87) and how its charitable deduction rules compare to those under the separate 9.9% income tax enacted under ESSB 6346 (effective 2028).
Washington’s capital gains tax includes a charitable deduction.
At first glance, it looks familiar—another way to reduce taxable gains through philanthropy.
But there is a critical limitation that many people miss:
Not all charitable donations count.
The Rule
Under RCW 82.87.080, taxpayers may claim a deduction for charitable donations—but only if the donation is made to a “qualified organization.”
A "qualified organization" must meet two requirements: it must be eligible to receive a charitable contribution under IRC §170(c), and it must be principally directed and managed within the state of Washington.
This matters most with donor-advised funds: in Washington, the relevant organization is the DAF sponsor (Fidelity/Vanguard/Schwab, etc.), not the charity you ultimately recommend.
The statute further explains that this means the place where the organization’s activities are:
“primarily directed, controlled, and coordinated.”
That language is doing a lot of work—and it creates real uncertainty. The Washington DOR has published administrative rules and guidance under WAC 458-20-30001 that address what "principally directed and managed" means in practice, but gray areas remain—particularly for organizations with hybrid or distributed governance structures. If there is any doubt about whether a specific organization qualifies, the safest path is to consult a Washington tax advisor before the donation is made, not after.
What This Actually Means
This is not a standard federal charitable deduction rule.
At the federal level, the question is simple:
- Is the organization a qualified 501(c)(3)?
In Washington, that’s not enough.
Instead, the key question becomes:
Where is the organization actually run from?
That can be straightforward in some cases:
- A Seattle-based nonprofit → likely qualifies
- A local Washington charity with in-state leadership → likely qualifies
But it gets much less clear with:
- National nonprofits with operations in multiple states
- Organizations with distributed or remote leadership
- Donor-advised fund sponsors based outside Washington
Where People Get This Wrong
1. Donor-Advised Funds (DAFs)
This is the biggest trap.
Many high earners use donor-advised funds sponsored by large national organizations.
The issue:
- The relevant entity is the DAF sponsor, not the ultimate grant recipient
- If the sponsor is not “principally directed and managed” in Washington, the deduction may not apply
In other words:
You can donate to a Washington charity through an out-of-state DAF—and still lose the Washington deduction.
2. National Charities
Large, well-known nonprofits often operate nationwide.
Even if they have a meaningful presence in Washington:
- That does not necessarily mean they are principally directed and managed here
The statutory test is about where control happens, not where services are delivered.
3. Federal Assumptions
Many taxpayers assume:
“If it’s deductible federally, it should work for Washington.”
That assumption does not hold here.
Washington has effectively created a state-specific filter on top of the federal system.
The Planning Implications
This rule turns what looks like a simple deduction into a structural planning issue.
1. Choice of Giving Vehicle Matters
- Direct gifts to Washington-based organizations → more likely to qualify
- National DAFs → potentially disqualified
- Private foundations → depends on governance and location
2. The Deduction Is Already Limited
Even if you qualify:
- The deduction only applies above the capital gains standard deduction threshold — $250,000 is the statutory baseline, inflation-adjusted annually by the Washington DOR ($278,000 for tax year 2025)
- It is capped (generally $100,000)
To put those two limits together: the deduction only kicks in on charitable donations above the $278,000 threshold, and even then it is capped at $100,000. So if you have $500,000 in capital gains and donate $150,000 to a qualifying Washington-based charity, your deductible amount is $100,000—reducing your taxable gains from $500,000 to $400,000. That $100,000 deduction saves you $7,000 in Washington capital gains tax (at the 7% rate). Lose the deduction entirely because you gave through an out-of-state DAF, and you leave $7,000 on the table.
That makes it even more important not to lose it through technical mistakes.
3. This Is a Policy Choice
The structure suggests a broader point:
Washington is not just encouraging charitable giving—it is encouraging charitable giving tied to Washington-based organizations.
That is unusual compared to federal tax policy.
What This Means for Washington Charities
The practical effect on Washington charities is more nuanced than it might first appear. The rule applies only to taxpayers with capital gains above $278,000—a narrow group of high earners and founders with liquidity events. Most charitable giving comes from a much broader donor base that is completely unaffected.
For Washington-based nonprofits, the rule may actually work in their favor. High earners who want the deduction have an incentive to give directly to local organizations rather than routing gifts through a national DAF. National charities with Washington donor bases—large health organizations, environmental groups, university endowments headquartered out of state—are more likely to see a reduction in giving from this group.
The biggest risk to overall giving is the DAF timing trap. Founders often batch charitable contributions into a DAF immediately after a liquidity event for federal tax purposes, then distribute grants over time. If they lose the Washington deduction because they used an out-of-state sponsor—and only discover the mistake at tax filing—there is no way to restructure retroactively. Some donors in that situation will simply give less in future years. That chilling effect, driven by uncertainty rather than intent, is probably the most underappreciated consequence of how this rule is written.
What About Washington's New Income Tax?
Starting in 2028, a separate 9.9% income tax on high earners takes effect under ESSB 6346. The income tax also includes a charitable deduction—but it works very differently from the capital gains tax deduction.
Under the income tax (ESSB 6346, Sec. 308), the charitable deduction is simply the amount the taxpayer claimed under section 170 of the federal internal revenue code—up to $100,000. There is no minimum threshold, no "principally directed and managed in Washington" requirement, and no restriction on which organizations qualify. A national DAF, an out-of-state university, a large health nonprofit headquartered elsewhere—all of these count for income tax purposes, because if the IRS accepts the deduction, Washington does too.
That is a stark contrast. Under the capital gains tax, donating $100,000 to Fidelity Charitable saves you nothing—the deduction is disallowed because the DAF sponsor is not Washington-based. Under the income tax, that same donation saves you $9,900 (9.9% of $100,000), because the only question is whether the contribution qualifies under federal law.
The practical implication for post-2028 planning: a founder with both capital gains and ordinary income needs to think about charitable giving vehicle choice for each tax separately. A Washington-based DAF or direct gift to a local nonprofit maximizes deductions under both taxes. An out-of-state DAF forfeits the capital gains deduction entirely while still preserving the income tax deduction. Getting the vehicle right matters most at the capital gains tax level—but that is still worth up to $7,000 per $100,000 donated.
Bottom Line
The charitable deduction under Washington’s capital gains tax is not automatic.
To qualify:
- The organization must be principally directed and managed in Washington
- Common planning tools—especially national donor-advised funds—may not qualify
- Federal deductibility does not guarantee state deductibility
For high earners and founders planning liquidity events, this is a detail worth getting right.
Starting in 2028, the income tax adds a second layer—but with a different rule. The income tax charitable deduction requires no Washington nexus: any organization deductible under federal law qualifies, including national DAFs and out-of-state charities. The capital gains tax Washington-only filter does not carry over. The two deductions operate independently, and planning for one does not automatically cover the other.
Because in Washington:
Not all charitable donations are treated the same.
